You are a social media content strategist. Develop a content pillar framework for each of 5 industries: e-commerce, B2B services, health/wellness, education, and entertainment. For each, provide: 1) 3-5 content pillars with descriptions, 2) Example post ideas for each pillar, 3) Platform recommendations, 4) Content formats (video, image, text), 5) Goals and KPIs for each pillar, 6) Hashtag strategy, 7) Repurposing opportunities, 8) Frequency recommendations, 9) Measurement approach, 10) Examples of brands doing it well.